In linear algebra, a nilpotent matrix is a square matrix N such that N k = 0 {\displaystyle N^{k}=0\,} for some positive integer k {\displaystyle k} ...
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states that any matrix is uniquely the sum of a diagonalizable matrix and a nilpotent matrix. Over an algebraically closed field, diagonalizable matrices...
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See nilpotent matrix for more. In the factor ring Z / 9 Z {\displaystyle \mathbb {Z} /9\mathbb {Z} } , the equivalence class of 3 is nilpotent because...
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triangular matrix are also 0, the matrix is called strictly (lower or upper) triangular. All finite strictly triangular matrices are nilpotent of index...
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the zero matrix. Identity matrix, the multiplicative identity for matrices Matrix of ones, a matrix where all elements are one Nilpotent matrix Single-entry...
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Trace (linear algebra) (redirect from Trace of a matrix)
The matrix PX is idempotent. More generally, the trace of any idempotent matrix, i.e. one with A2 = A, equals its own rank. The trace of a nilpotent matrix...
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i.e. when T is a square matrix (Nilpotent matrix) with complex entries, σ(T) = {0} if and only if T is similar to a matrix whose only nonzero entries...
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{e^{4}+1}{2e}}\\\end{bmatrix}}.} A matrix N is nilpotent if Nq = 0 for some integer q. In this case, the matrix exponential eN can be computed directly...
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The adjacency matrix can be used to determine whether or not the graph is connected. If a directed graph has a nilpotent adjacency matrix (i.e., if there...
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inverse B − 1 {\displaystyle B^{-1}} and N {\displaystyle N} is a nilpotent matrix, then A D = [ B − 1 0 0 0 ] {\displaystyle A^{D}={\begin{bmatrix}B...
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with M nilpotent, commuting with N and hence L. But then 0 = S2 − T2 = 2(L − M)(I + (L + M)/2). Since L and M commute, the matrix L + M is nilpotent and...
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(the identity matrix), for any integer a between 0 and n inclusive. If N is any nilpotent matrix, then N is similar to a block diagonal matrix of the form...
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Unipotent (redirect from Unipotent matrix)
that r − 1 is a nilpotent element; in other words, (r − 1)n is zero for some n. In particular, a square matrix M is a unipotent matrix if and only if its...
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1&0\\0&0\end{bmatrix}}.} For n ≥ 2, the matrix ring Mn(R) over a nonzero ring has zero divisors and nilpotent elements; the same holds for the ring of...
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In mathematics, specifically group theory, a nilpotent group G is a group that has an upper central series that terminates with G. Equivalently, it has...
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List of named matrices (redirect from List of matrix)
matrices used in mathematics, science and engineering. A matrix (plural matrices, or less commonly matrixes) is a rectangular array of numbers called entries...
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Lie group (redirect from Matrix Lie group)
with the group of unit quaternions. The Heisenberg group is a connected nilpotent Lie group of dimension 3 {\displaystyle 3} , playing a key role in...
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Jordan normal form (category Matrix theory)
Jordan block corresponding to λ is of the form λI + N, where N is a nilpotent matrix defined as Nij = δi,j−1 (where δ is the Kronecker delta). The nilpotency...
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Dual number (section Matrix representation)
zero matrix, corresponding to the dual number ε {\displaystyle \varepsilon } . Generally, if ε {\displaystyle \varepsilon } is a nilpotent matrix, then...
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splitting of A. Gauss–Seidel method Jacobi method List of matrices Nilpotent matrix Successive over-relaxation Burden & Faires (1993, p. 404) Isaacson...
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Weyr canonical form (redirect from Weyr matrix)
where D {\displaystyle D} is a diagonal matrix, N {\displaystyle N} is a nilpotent matrix, and [ D , N ] = 0 {\displaystyle [D,N]=0} , justifying...
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similarly. A nilpotent element is an element a such that an = 0 for some n > 0. One example of a nilpotent element is a nilpotent matrix. A nilpotent element...
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the Jordan normal form of matrices we know that each nilpotent matrix is conjugate to a unique matrix with Jordan blocks of sizes λ 1 ≥ λ 2 ≥ … ≥ λ r , {\displaystyle...
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Jordan–Chevalley decomposition which expresses a matrix as a sum of a diagonalizable and a nilpotent part. A Hermitian matrix has all real eigenvalues and can always...
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Perron–Frobenius theorem (redirect from Primitive matrix)
then so is D and D−1(PAP−1) is equal to the identity plus a nilpotent matrix. But such a matrix is always invertible (if Nk = 0 the inverse of 1 − N is 1...
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the mathematical discipline of matrix theory, a Jordan matrix, named after Camille Jordan, is a block diagonal matrix over a ring R (whose identities...
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Schur decomposition (category Matrix theory)
triangular matrix U as U = D + N, where D is diagonal and N is strictly upper triangular (and thus a nilpotent matrix). The diagonal matrix D contains...
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Lie algebra (section Abelian, nilpotent, and solvable)
classification of Lie groups. Analogously to abelian, nilpotent, and solvable groups, one can define abelian, nilpotent, and solvable Lie algebras. A Lie algebra...
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Polar decomposition (redirect from Matrix polar decomposition)
complex matrix A {\displaystyle A} is a factorization of the form A = U P {\displaystyle A=UP} , where U {\displaystyle U} is a unitary matrix, and P {\displaystyle...
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Central series (redirect from Nilpotent residual)
For groups, the existence of a central series means it is a nilpotent group; for matrix rings (considered as Lie algebras), it means that in some basis...
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